Spit Kits

London bus-drivers carrying DNA kits for catching face-spitters London bus-drivers are being equipped with DNA sample kits with which to capture spittle when irate passengers spit on them. boingboing blog

If you go around spitting on people, you deserve to get busted. I applaud the DNA kit thing. I'm scared that they have a national database of genetic prints to identify people, but that is another rant.